进气畸变对涡扇发动机稳定性及性能影响

赵运生; 胡骏; 屠宝锋; 李亮; 罗钜

进气畸变对涡扇发动机稳定性及性能影响

南京航空航天大学能源与动力学院, 南京 210016

基金项目: 高等学校博士学科点专项科研基金(20113218120006)

计量
- 文章访问数: 2167
- HTML浏览量: 414
- PDF量: 1209
- 被引次数: 0
出版历程
- 收稿日期: 2012-06-04
- 刊出日期: 2013-06-28

Inlet distortion’s effects on stability and performance of turbofan engine

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 为评估进气畸变对涡扇发动机稳定性和性能的影响,发展了一种二维的计算方法,采用非定常、二维、无黏的积分型欧拉方程,沿发动机轴向、周向划分计算单元,通过时间推进法进行求解.某双轴混排涡扇发动机的分析结果表明:该方法可以获得进气畸变在发动机流道中的传递曲线,评估风扇、高压压气机等部件对畸变的衰减作用;通过对工作包线上典型工况点的分析,可判断各点抗总压、总温畸变的能力,确定受畸变影响较大的危险点;在给定的稳态总压畸变条件下,发动机推力下降、耗油率上升,其最大变化值为10.5%和11.7%.
- 涡扇发动机 /
- 进气畸变 /
- 数值仿真 /
- 稳定性 /
- 发动机性能
Abstract: For assessing the inlet distortion's effects on the stability and performance of turbofan engine,a two-dimensional method was developed.The unsteady two-dimensional inviscid integral Euler's equations were used;units were divided along the axial and circumferential directions and solved by time-matching.Simulations of a two spool mixed flow turbofan engine show that this method would obtain the distortion transfer curves along the flow path,which can assess the attenuation of components such as fan or high pressure compressor for distortion.Capabilities to resist the total pressure and total temperature distortion were analyzed for typical operating points in the flight envelope,and the most dangerous point was confirmed;under the given total pressure distortion condition, the turbofan engine's thrust decreases and the specific oil consumption increases, and the maximum amounts of change are 10.5% and 11.7% respectively.
- turbofan engine /
- inlet distortion /
- numerical simulation /
- stability /
- engine performance

HTML

参考文献(15)

[1]	刘大响,叶培梁,胡骏,等.航空燃气涡轮发动机稳定性设计与评定技术[M].北京:航空工业出版社,2004.
[2]	黄顺洲,陆德雨.进口温度畸变对发动机稳定性影响的数值研究[J].燃气涡轮试验与研究,2001,14(1):46-52. HUANG Shunzhou,LU Deyu.A numerical investigation in effects of inlet temperature distortion on engine stability[J].Gas Turbine Experiment and Research,2001,14(1):46-52.(in Chinese)
[3]	HU Jun,Thomas P,Leonhard F.Numerical simulation of flow instabilities in high speed multistage compressors[J].Journal of Thermal Science,1999,8(1):23-31.
[4]	Gorrell S E.Application of a dynamic compression system model to a low aspect ratio fan:casing treatment and distortion[R].AIAA-1993-1871,1993.
[5]	Kimball A S.Application of a modified dynamic compression system,model to low aspect ratio fan:effects and inlet distortion[R].AIAA-1995-0301,1995.
[6]	黄顺洲,胡骏.组合畸变对某型发动机稳定性的影响[J].航空动力学报,2006,21(6):1085-1091. HUANG Shunzhou,HU Jun.Investigation of the effect of combined distortion on engine stability[J].Journal of Aerospace Power,2006,21(6):1085-1091.(in Chinese)
[7]	王鹏,蔡元虎,王占学,等.进气畸变对发动机压缩系统稳定性影响的数值模拟[J].流体机械,2006,34(8):15-19. WANG Peng,CAI Yuanhu,WANG Zhanxue,et al.Effect of pressure and temperature distortion on turbine engine stability[J].Fluid Machinery,2006,34(8):15-19.(in Chinese)
[8]	王占学,王鹏,乔渭阳.畸变进气时涡扇发动机整机环境下压缩部件气动稳定性评定[J].推进技术,2007,28(1):20-25. WANG Zhanxue,WANG Peng,QIAO Weiyang.Aerodynamic stability assessment for compression component running in turbofan engine with distorted flow[J].Journal of Propulsion Technology,2007,28(1):20-25.(in Chinese)
[9]	叶新农,王占学,乔渭阳.进口压力畸变对弹用涡喷发动机稳定性的影响[J].西北工业大学学报,2003,21(3):265-268. YE Xinnong,WANG Zhanxue,QIAO Weiyang.Effect of inlet pressure distortion on stability margin of missile turbojet engine [J].Jounrnal of Northwestern Polytechnical University,2003,21(3):265-268.(in Chinese)
[10]	Orkisz M,Stawarz S.Modeling of turbine engine axialflow compressor and turbine characteristics[J].Journal of Propulsion and Power,2000,16(2):336-339.
[11]	李阳.进气畸变对发动机性能和稳定性影响的研究[D].南京:南京航空航天大学,2005. LI Yang.Research on inlet distortion's effect on performance and stability of aero-engine[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2005.(in Chinese)
[12]	田宁,陈金国,张恩和.畸变对航空发动机稳定性的影响[J].航空发动机,2002(2):25-28. TIAN Ning,CHEN Jinguo,ZHANG Enhe.Effect of distortion on aeroengine stability[J].Aeroengine,2002(2):25-28.(in Chinese)
[13]	叶巍.压力畸变对某型发动机稳定性影响的数值研究[J].燃气涡轮与实验,2004,17(2):36-40. YE Wei.Numerical study on the effects of inlet pressure distortion on the stability of a turbofan[J].Gas Turbine Experiment and Research,2004,17(2):36-40.(in Chinese)
[14]	黄顺洲,胡骏.进气畸变对发动机稳定性影响的分析模型[J].推进技术,2006,27(5):426-430. HUANG Shunzhou,HU Jun.Model of the effect of inlet flow distortions on engine stability[J].Journal of Propulsion Technology,2006,27(5):426-430.(in Chinese)
[15]	廉筱纯,吴虎.航空发动机原理[M].西安:西北工业大学出版社,2005.